<template>
  <div class="app-container">
    <el-row :gutter="20">
      <!--分类数据-->
      <el-col :span="3" :xs="24">
        <div class="head-container">
          <el-input
              v-model="categoryName"
              clearable
              placeholder="请输入分类名称"
              prefix-icon="Search"
              style="margin-bottom: 20px"
          />
        </div>
        <div class="head-container">
          <el-tree
              :data="categoryList"
              :expand-on-click-node="false"
              :filter-node-method="filterNode"
              ref="categoryTreeRef"
              :props="treeProps"
              highlight-current
              node-key="id"
              @node-click="handleNodeClick"
              accordion
          />
        </div>
      </el-col>

      <el-col :span="20" :xs="24">
        <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
          <el-form-item label="课程名称" prop="name">
            <el-input
                v-model="queryParams.name"
                placeholder="请输入课程名称"
                clearable
                @keyup.enter="handleQuery"
            />
          </el-form-item>
          <el-form-item label="课程类型" prop="courseType">
            <el-select v-model="queryParams.courseType" clearable placeholder="请选择课程类型" style="width: 200px">
              <el-option
                  v-for="dict in les_type"
                  :key="dict.value"
                  :label="dict.label"
                  :value="dict.value"
              />
            </el-select>
          </el-form-item>

          <el-form-item label="售卖方式" prop="free">
            <el-select v-model="queryParams.free" clearable placeholder="请选择售卖方式" style="width:200px">
              <el-option
                  v-for="dict in free"
                  :key="dict.value"
                  :label="dict.label"
                  :value="dict.value"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="课程状态" prop="status">
            <el-select v-model="queryParams.status" clearable placeholder="请选择课程状态" style="width: 200px">
              <el-option
                  v-for="dict in les_status"
                  :key="dict.value"
                  :label="dict.label"
                  :value="dict.value"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="更新时间" prop="updateTime">
            <el-date-picker clearable
                            v-model="queryParams.updateTime"
                            type="date"
                            value-format="YYYY-MM-DD"
                            placeholder="请选择更新时间">
            </el-date-picker>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
            <el-button icon="Refresh" @click="resetQuery">重置</el-button>
          </el-form-item>
        </el-form>

        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button
                type="primary"
                plain
                icon="Plus"
                @click="handleAdd"
                v-hasPermi="['course:course:add']"
            >新增
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
                type="success"
                plain
                icon="Edit"
                :disabled="single"
                @click="handleUpdate"
                v-hasPermi="['course:course:edit']"
            >修改
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
                type="danger"
                plain
                icon="Delete"
                :disabled="multiple"
                @click="handleDelete"
                v-hasPermi="['course:course:remove']"
            >删除
            </el-button>
          </el-col>
          <el-col :span="1.5">
            <el-button
                type="warning"
                plain
                icon="Download"
                @click="handleExport"
                v-hasPermi="['course:course:export']"
            >导出
            </el-button>
          </el-col>
          <right-toolbar v-model:showSearch="showSearch" :columns="columns" @queryTable="getList"></right-toolbar>
        </el-row>

        <el-table v-loading="loading" :data="courseList" @selection-change="handleSelectionChange">
          <el-table-column type="selection" width="55" align="center"/>
          <el-table-column v-if="columns[0].visible" align="center" label="课程编号" prop="id"/>
          <el-table-column v-if="columns[1].visible" align="center" label="机构" prop="insName"/>
          <el-table-column v-if="columns[2].visible" align="center" label="课程名称" prop="name"/>
          <el-table-column v-if="columns[3].visible" align="center" label="课程类型" prop="courseType">
            <template #default="scope">
              <dict-tag :options="les_type" :value="scope.row.courseType"/>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[4].visible" align="center" label="封面" prop="coverUrl" width="100">
            <template #default="scope">
              <image-preview :src="scope.row.coverUrl" :width="50" :height="50"/>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[5].visible" align="center" label="课程分类" prop="thirdCateId"/>
          <el-table-column v-if="columns[6].visible" align="center" label="售卖方式" prop="free">
            <template #default="scope">
              <dict-tag :options="free" :value="scope.row.free"/>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[7].visible" align="center" label="课程价格(元)" prop="price" width="100"/>

          <el-table-column v-if="columns[8].visible" align="center" label="课程有效期" prop="purchaseStartTime"
                           width="180">
            <template #default="scope">
              <span>{{ parseTime(scope.row.purchaseStartTime, '{y}/{m}/{d}') }}</span>-
              <span>{{ parseTime(scope.row.purchaseEndTime, '{y}/{m}/{d}') }}</span>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[9].visible" align="center" label="信息填写进度" width="200">
            <template #default="scope">
              <el-progress :percentage="scope.row.step * 20" show-text :stroke-width="10"
                           :status="getProgressStatus(scope.row.step * 20)"></el-progress>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[10].visible" align="center" label="课程状态" prop="status">
            <template #default="scope">
              <dict-tag :options="les_status" :value="scope.row.status"/>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[11].visible" align="center" label="课程评分" prop="score" width="80">
            <template #default="scope">
              <div>
                <!--            <el-rate v-model="scope.row.score" :max="5"></el-rate>-->
                <span>{{ scope.row.score / 10 }}</span>
              </div>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[12].visible" align="center" label="总时长" prop="mediaDuration" width="150">
            <template #default="scope">
          <span v-if="scope.row.mediaDuration === 0">
            0分钟
          </span>
              <span v-if="Math.floor(scope.row.mediaDuration / 3600) > 0">
            {{ Math.floor(scope.row.mediaDuration / 3600) }}
            <span>小时</span>
          </span>
              <span v-if="Math.floor((scope.row.mediaDuration % 3600) / 60) > 0">
            {{ Math.floor((scope.row.mediaDuration % 3600) / 60) }}
            <span>分钟</span>
          </span>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[0].visible" align="center" label="有效时间(月)" prop="validDuration"/>
          <el-table-column v-if="columns[0].visible" align="center" label="课程总节数" prop="sectionNum"/>
          <el-table-column v-if="columns[0].visible" align="center" label="发布次数" prop="publishTimes"/>
          <el-table-column v-if="columns[0].visible" align="center" label="上次发布时间" prop="publishTime" width="110">
            <template #default="scope">
              <span>{{ parseTime(scope.row.publishTime, '{y}/{m}/{d}') }}</span>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[0].visible" align="center" label="创建时间" prop="createTime" width="100">
            <template #default="scope">
              <span>{{ parseTime(scope.row.createTime, '{y}/{m}/{d}') }}</span>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[0].visible" align="center" label="更新时间" prop="updateTime" width="100">
            <template #default="scope">
              <span>{{ parseTime(scope.row.updateTime, '{y}/{m}/{d}') }}</span>
            </template>
          </el-table-column>
          <el-table-column v-if="columns[0].visible" align="center" label="创建人" prop="createBy"/>
          <el-table-column v-if="columns[0].visible" align="center" label="更新人" prop="updateBy"/>
          <el-table-column align="center" class-name="small-padding fixed-width" fixed="right" label="操作">
            <template #default="scope">
              <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)"
                         v-hasPermi="['course:course:edit']">修改
              </el-button>
              <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)"
                         v-hasPermi="['course:course:remove']">删除
              </el-button>
            </template>
          </el-table-column>
        </el-table>

        <pagination
            v-show="total>0"
            :total="total"
            v-model:page="queryParams.pageNum"
            v-model:limit="queryParams.pageSize"
            @pagination="getList"
        />
      </el-col>
    </el-row>

    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="courseRef" :model="form" :rules="rules" label-width="80px">
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Course">
import {addCourse, delCourse, getCourse, listCourse, updateCourse} from "@/api/course/course";
import {listCategory} from '@/api/course/category';

const {proxy} = getCurrentInstance();
const {les_status, les_type, free} = proxy.useDict('les_status', 'les_type', 'free');

const courseList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");
const categoryList = ref([]);
const categoryName = ref("");
const treeProps = ref({
  value: 'id', // 数据中的 value 字段
  label: 'name', // 数据中的 label 字段
  children: 'children' // 数据中的 children 字段
});
// 列显隐信息
const columns = ref([
  {key: 0, label: `用户编号`, visible: true},
  {key: 1, label: `用户名称`, visible: true},
  {key: 2, label: `用户昵称`, visible: true},
  {key: 3, label: `部门`, visible: false},
  {key: 4, label: `手机号码`, visible: true},
  {key: 5, label: `状态`, visible: true},
  {key: 6, label: `创建时间`, visible: true},
  {key: 7, label: `更新时间`, visible: true},
  {key: 8, label: `创建人`, visible: false},
  {key: 9, label: `更新人`, visible: false},
  {key: 10, label: `操作`, visible: true},
  {key: 11, label: `操作`, visible: true},
  {key: 12, label: `操作`, visible: true}
]);

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 20,
    name: null,
    courseType: null,
    firstCateId: null,
    secondCateId: null,
    thirdCateId: null,
    free: null,
    status: null,
    updateTime: null,
  },
  rules: {
    insId: [
      {required: true, message: "机构id不能为空", trigger: "blur"}
    ],
    name: [
      {required: true, message: "课程名称不能为空", trigger: "blur"}
    ],
    courseType: [
      {required: true, message: "课程类型不能为空", trigger: "change"}
    ],
    coverUrl: [
      {required: true, message: "封面不能为空", trigger: "blur"}
    ],
    firstCateId: [
      {required: true, message: "一级课程分类id不能为空", trigger: "blur"},
    ],
    secondCateId: [
      {required: true, message: "二级课程分类id不能为空", trigger: "blur"}
    ],
    thirdCateId: [
      {required: true, message: "三级课程分类id不能为空", trigger: "blur"}
    ],
    free: [
      {required: true, message: "售卖方式不能为空", trigger: "change"}
    ],
    price: [
      {required: true, message: "课程价格不能为空", trigger: "blur"}
    ],
    templateType: [
      {required: true, message: "模板类型不能为空", trigger: "change"}
    ],
    templateUrl: [
      {required: true, message: "自定义模板不能为空", trigger: "blur"}
    ],
    status: [
      {required: true, message: "课程状态不能为空", trigger: "change"}
    ],
    purchaseEndTime: [
      {required: true, message: "有效期结束时间不能为空", trigger: "blur"}
    ],
    step: [
      {required: true, message: "信息填写进度不能为空", trigger: "blur"}
    ],
    validDuration: [
      {required: true, message: "课程有效期不能为空", trigger: "blur"}
    ],
    depId: [
      {required: true, message: "部门id不能为空", trigger: "blur"}
    ],
    delFlag: [
      {required: true, message: "逻辑删除不能为空", trigger: "blur"}
    ],
  }
});

const {queryParams, form, rules} = toRefs(data);

/** 通过条件过滤节点  */
const filterNode = (value, data) => {
  if (!value) return true;
  return data.name.indexOf(value) !== -1;
};

/** 节点单击事件 */
function handleNodeClick(data) {
  if (data.level === 1) {
    queryParams.value.firstCateId = data.id;
  } else if (data.level === 2) {
    queryParams.value.secondCateId = data.id;
  } else if (data.level === 3) {
    queryParams.value.thirdCateId = data.id;
  }
  handleQuery();
}

/** 根据名称筛选分类树 */
watch(categoryName, val => {
  proxy.$refs["categoryTreeRef"].filter(val);
});

/** 查询分类下拉树结构 */
function getCategoryTree() {
  listCategory().then(response => {
    categoryList.value = response.rows;
  });
}


const getProgressStatus = (percentage) => {
  if (percentage === 0) {
    return 'exception';
  } else if (percentage > 0 && percentage < 100) {
    return 'warning';
  } else {
    return 'success';
  }
};

/** 查询课程列表及分类 */
function getList() {
  loading.value = true;
  listCourse(queryParams.value).then(response => {
    courseList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });

}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    insId: null,
    name: null,
    courseType: null,
    coverUrl: null,
    firstCateId: null,
    secondCateId: null,
    thirdCateId: null,
    free: null,
    price: null,
    templateType: null,
    templateUrl: null,
    status: null,
    purchaseStartTime: null,
    purchaseEndTime: null,
    step: null,
    score: null,
    mediaDuration: null,
    validDuration: null,
    sectionNum: null,
    depId: null,
    delFlag: null,
    publishTimes: null,
    publishTime: null,
    createTime: null,
    updateTime: null,
    createBy: null,
    updateBy: null
  };
  proxy.resetForm("courseRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  queryParams.value.id = undefined;
  proxy.$refs.categoryTreeRef.setCurrentKey(null);
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  // open.value = true;
  // title.value = "添加课程";
  // 内部跳转至/add
  proxy.$router.push({path: "/course/addOrUpdate/index/" + 0});

}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value
  getCourse(_id).then(response => {
    form.value = response.data;
    open.value = true;
    title.value = "修改课程";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["courseRef"].validate(valid => {
    if (valid) {
      if (form.value.id != null) {
        updateCourse(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addCourse(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal.confirm('是否确认删除课程编号为"' + _ids + '"的数据项？').then(function () {
    return delCourse(_ids);
  }).then(() => {
    getList();
    proxy.$modal.msgSuccess("删除成功");
  }).catch(() => {
  });
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('course/course/export', {
    ...queryParams.value
  }, `course_${new Date().getTime()}.xlsx`)
}

getCategoryTree();
getList();
</script>
